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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <stdlib.h>
#include <errno.h>
#include <euc.h>
#include "japanese.h"
#include "jfp_iconv_unicode.h"
#define JFP_J2U_ICONV_X0213
#include "jfp_jis_to_ucs2.h"
struct _icv_state {
int _st_cset;
};
void *
_icv_open(void)
{
void *cd;
struct _icv_state *st;
cd = _icv_open_unicode(sizeof (struct _icv_state));
if (cd != NULL) {
st = (struct _icv_state *)(_icv_get_ext(cd));
st->_st_cset = CS_0;
}
return (cd);
}
void
_icv_close(void *cd)
{
_icv_close_unicode(cd);
return;
}
size_t
_icv_iconv(void *cd, char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft)
{
unsigned int u32; /* UTF-32 */
unsigned short e16; /* 16-bit EUC */
unsigned char ic1, ic2; /* bytes in a char or an esc seq */
unsigned char ic3, ic4; /* bytes in an esc seq */
size_t rv = (size_t)0; /* return value of this function */
struct _icv_state *st;
unsigned char *ip;
size_t ileft;
char *op;
size_t oleft;
st = (struct _icv_state *)(_icv_get_ext(cd));
/*
* If inbuf and/or *inbuf are NULL, reset conversion descriptor
* and put escape sequence if needed.
*/
if ((inbuf == NULL) || (*inbuf == NULL)) {
st->_st_cset = CS_0;
_icv_reset_unicode(cd);
return ((size_t)0);
}
ip = (unsigned char *)*inbuf;
ileft = *inbytesleft;
op = *outbuf;
oleft = *outbytesleft;
while (ileft != 0) {
NGET(ic1, "never fail here"); /* get 1st byte */
if (ic1 == ESC) { /* Escape */
NGET(ic2, "ESC-2");
switch (ic2) {
case 0x24: /* $ */
NGET(ic3, "ESC$-3");
switch (ic3) {
case 0x28: /* $( */
NGET(ic4, "ESC$(-4");
switch (ic4) {
case 0x4f: /* 24-28-4F ESC$(O */
st->_st_cset = CS_1;
break;
case 0x50: /* 24-28-50 ESC$(P */
st->_st_cset = CS_3;
break;
case 0x51: /* 24-28-51 ESC$(Q */
st->_st_cset = CS_1;
break;
default:
RETERROR(EILSEQ,
"Unknown ESC$(?");
}
break;
case 0x42: /* 24-42 ESC$B */
st->_st_cset = CS_1;
break;
default:
RETERROR(EILSEQ, "Unknown ESC$?");
}
break;
case 0x28: /* ( */
NGET(ic3, "ESC(-3");
switch (ic3) {
case 0x42: /* 28-42 ESC(B */
st->_st_cset = CS_0;
break;
default:
RETERROR(EILSEQ, "Unknown ESC(?");
}
break;
default:
RETERROR(EILSEQ, "Unknown ESC?");
}
} else if (st->_st_cset == CS_0) { /* IRV */
if ((ic1 == 0x0e) || (ic1 == 0x0f) || (ic1 > 0x7f)) {
RETERROR(EILSEQ, "IRV-1")
}
u32 = (unsigned int)_jfp_tbl_jisx0201roman_to_ucs2[ic1];
PUTU(u32, "IRV");
} else if (st->_st_cset == CS_1) { /* Plane 1 */
if ((ic1 < 0x21) || (ic1 > 0x7e)) {
RETERROR(EILSEQ, "PLANE1-1")
}
NGET(ic2, "PLANE1-2");
if ((ic2 < 0x21) || (ic2 > 0x7e)) {
RETERROR(EILSEQ, "PLANE1-2")
}
e16 = ((ic1 << 8) | ic2) | 0x8080;
u32 = (unsigned int)_jfp_tbl_jisx0208_to_ucs2[
(ic1 - 0x21) * 94 + (ic2 - 0x21)];
if (IFHISUR(u32)) {
u32 = _jfp_lookup_x0213_nonbmp(e16, u32);
PUTU(u32, "PLANE1->NONBMP");
} else if (u32 == 0xffff) {
/* need to compose */
unsigned int u32_2;
u32 = _jfp_lookup_x0213_compose(e16, &u32_2);
PUTU(u32, "PLANE1->CP1");
PUTU(u32_2, "PLANE1->CP2");
} else {
PUTU(u32, "PLANE1->BMP");
}
} else if (st->_st_cset == CS_3) { /* Plane 2 */
if ((ic1 < 0x21) || (ic1 > 0x7e)) {
RETERROR(EILSEQ, "PLANE2-1")
}
NGET(ic2, "PLANE2-2");
if ((ic2 < 0x21) || (ic2 > 0x7e)) {
RETERROR(EILSEQ, "PLANE2-2")
}
e16 = ((ic1 << 8) | ic2) | 0x8000;
u32 = (unsigned int)_jfp_tbl_jisx0213p2_to_ucs2[
(ic1 - 0x21) * 94 + (ic2 - 0x21)];
if (IFHISUR(u32)) {
u32 = _jfp_lookup_x0213_nonbmp(e16, u32);
PUTU(u32, "PLANE2->NONBMP");
} else {
PUTU(u32, "PLANE2->BMP");
}
}
/*
* One character successfully converted so update
* values outside of this function's stack.
*/
*inbuf = (char *)ip;
*inbytesleft = ileft;
*outbuf = op;
*outbytesleft = oleft;
}
ret:
DEBUGPRINTERROR
/*
* Return value for successful return is not defined by XPG
* so return same as *inbytesleft as existing codes do.
*/
return ((rv == (size_t)-1) ? rv : *inbytesleft);
}
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